Simms' exclusive COR3 technology provides all-day protection against harmful UV rays

Broadband sonar coverage

LifeStraw is a proud B Corp and Climate Neutral Certified brand

- Gentle charging of 12 V batteries with optimised 6-stage IUOU charging technology

Whether you're casting for trophy fish or tackling challenging waters

UNI-Thread Colour:White Simms' exclusive COR3 technology providesTie Stronger, Flatter Flies with Premium UNI Thread Stop losing hard fished flies to unravelled wraps and bulky collars at the vice. Designed for serious fly tyers who demand absolute precision, UNI Thread offers the perfect balance of tensile strength and a flat profile. Whether you are spinning delicate dry flies or packing heavy saltwater patterns, this legendary thread ensures every turn locks down with absolute security. The Global Gold Standard